[1,1,1,2,3,4,4,4,4,5,5,5,5,5,6,6,6,6,6,6,8,7,8,8, 8,8,8,8,10,9,10,9,10,10,10,10,10,10,13,11,12,12, 12,11,13,13,13,13,13,13,13,16,14,15,16,15,15,15, 14,16,16,16,16,16,16,16,16,20,17,18,16,20,19,19, 20,19,19,18,20]